IGCSE · Cambridge Assessment International Education · Grading: A*–G Scale

Cambridge IGCSE Computer Science

10 topics · 96 learning objectives

Syllabus topics

1.1.1Explain why computers represent all data in binary

1.1.2Use denary binary and hexadecimal and convert positive integers between them

1.1.3Explain why hexadecimal is useful

1.1.4Add two positive 8-bit binary integers and explain overflow

1.1.5Perform logical left and right shifts on positive 8-bit values and explain the effect

1.1.6Represent positive and negative values using 8-bit two's complement

1.2.1Explain binary text representation and compare ASCII with Unicode

1.2.2Explain sampled sound and effects of sample rate and resolution

1.2.3Explain bitmap images and effects of resolution and colour depth

1.3.1Use binary storage units from bit through EiB

1.3.2Calculate image and sound file sizes

1.3.3Explain the purpose and effects of compression

1.3.4Explain lossy and lossless compression

Topic 1 is free.